421470686 has 16 divisors (see below), whose sum is σ = 778100064. Its totient is φ = 166735584.

The previous prime is 421470661. The next prime is 421470701. The reversal of 421470686 is 686074124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1157705 + ... + 1158068.

It is an arithmetic number, because the mean of its divisors is an integer number (48631254).

Almost surely, 2^421470686 is an apocalyptic number.

421470686 is a deficient number, since it is larger than the sum of its proper divisors (356629378).

421470686 is a wasteful number, since it uses less digits than its factorization.

421470686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2315795.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 421470686 is about 20529.7512405777. The cubic root of 421470686 is about 749.7603299377.

The spelling of 421470686 in words is "four hundred twenty-one million, four hundred seventy thousand, six hundred eighty-six".